74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
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// Copyright (c) 2014 Adafruit Industries
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// Author: Tony DiCola
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include <Python.h>
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#include "Beaglebone_Black/bbb_dht_read.h"
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// Wrap calling dht_read function and expose it as a DHT.read Python module & function.
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static PyObject* Beaglebone_Black_Driver_read(PyObject *self, PyObject *args)
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{
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// Parse sensor and pin integer arguments.
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int sensor, base, number;
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if (!PyArg_ParseTuple(args, "iii", &sensor, &base, &number)) {
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return NULL;
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}
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// Call dht_read and return result code, humidity, and temperature.
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float humidity = 0, temperature = 0;
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int result = bbb_dht_read(sensor, base, number, &humidity, &temperature);
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return Py_BuildValue("iff", result, humidity, temperature);
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}
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// Boilerplate python module method list and initialization functions below.
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static PyMethodDef module_methods[] = {
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{"read", Beaglebone_Black_Driver_read, METH_VARARGS, "Read DHT sensor value on a Beaglebone Black."},
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{NULL, NULL, 0, NULL}
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};
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#if PY_MAJOR_VERSION > 2
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static struct PyModuleDef bbb_dht_module = {
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PyModuleDef_HEAD_INIT,
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"Beaglebone_Black_Driver", // name of module
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NULL, // module documentation, may be NULL
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-1, // size of per-interpreter state of the module, or -1 if the module keeps state in global variables.
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module_methods
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};
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#endif
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#if PY_MAJOR_VERSION > 2
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PyMODINIT_FUNC PyInit_Beaglebone_Black_Driver(void)
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#else
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PyMODINIT_FUNC initBeaglebone_Black_Driver(void)
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#endif
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{
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#if PY_MAJOR_VERSION > 2
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PyObject* module = PyModule_Create(&bbb_dht_module);
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#else
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Py_InitModule("Beaglebone_Black_Driver", module_methods);
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#endif
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#if PY_MAJOR_VERSION > 2
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return module;
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#else
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return;
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#endif
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}
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